Kinetics and reaction mechanisms

• what is molecularity?


  The number of molecules involved in an elementary reaction
• what is molecularity on a theoretical concept?

  Always a positive interger
• what does the ratio of products equal?

  Ratio of rate constant
• What is the steady state approximation used for?


  Is used when an intermediate forms which is used up at the same rate is formed so concentrations of this remain roughly constant
• what must be true for the steady state assumption?


  Rate of formation of intermediate must be the rate-determining step

  Cant be applied at the beginning of a reaction